MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many of which point to compromised WordPress sites, indicating a link farm designed to redirect users. ClamAV and ML classifiers strongly suggest malicious intent, likely for phishing or malware distribution. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to a malicious redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b91806d35ed---52611920531.pdf In PDF document text
- http://tahi.hu/ckfinder/userfiles/files/guradagumobarinofuluvuta.pdfIn PDF document text
- https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/4ade7a08c0ac99a9368bf43257f55ccf/19549817837.pdfIn PDF document text
- https://noithatkuongthinh.com/uploads/files/puliv.pdfIn PDF document text
- http://tiszaikaland.hu/upload/file/miginasezifopenumifosuv.pdfIn PDF document text
- https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/1ikk6ap9fafonabehlggkvmqd2/kuzevubureviruw.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/r64b47c8fp0r8gmqtpvu37keg1/35089364720.pdfIn PDF document text
- https://tideandtigers.com/ckfinder/userfiles/files/lifinibavo.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/7171b1cf4bbfdba40bdf07a296a21386/zupatinozisepinoba.pdfIn PDF document text
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/a36c11ff2fe3bf4467c6e48176e1689f/kebuduzalakiji.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/4bfb3e6da75f9bf9744d26adbd0cad6f/33399844448.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bda98b1da0c---52661653329.pdfIn PDF document text
- https://hoongnau.com/upload/files/finesuninoluziwiwi.pdfIn PDF document text
- https://newtop-eg.com/userfiles/file/xilejefegelojowi.pdfIn PDF document text
- http://tano-cable.com/d/files/bopozevunulogoma.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/m17623ohmkvu5fpivv5e0lsrk2/nikoxawebumamaxix.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/4f1j0ab894p3b4usvor679684v/45989237304.pdfIn PDF document text
- https://luxurybaths.marblobaths.ph/app/webroot/img/files/99138875627.pdfIn PDF document text
- http://happyland-nsk.net/ckfinder/userfiles/files/gosunowelefobuwile.pdfIn PDF document text
- https://taksis.lv/taksis/userfiles/file/jakizesidipozogapeferi.pdfIn PDF document text
- http://piri-piri.pl/ckfinder/userfiles/files/68606218836.pdfIn PDF document text
- http://uptindia.com/newsimages/file///83867409183.pdfIn PDF document text
- https://linker.tw/files/28057398823.pdfIn PDF document text
- http://adria-ex.com/images/blog//file/manodelotesixa.pdfIn PDF document text
- http://playitdirect.ca/ckfinder/uploadfiles/files/29788615184.pdfIn PDF document text
- https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/nhbbfaujlkc91cvc2pt1rm54sa/witoruvojakuwu.pdfIn PDF document text
- http://kieryk.pl/img/userfiles/file/52167149018.pdfIn PDF document text
- http://dotbamboo.com/file_media/file_image/file/jefamofobiz.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=map+of+the+united+states+printable+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e574.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE574 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fd8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD8B | 10828 bytes |
SHA-256: 8716ad4500eeafb9f199822c7addf903f9d01b63599a4567ddc8805cc4cd2831 |
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font_02_sfnt_off00011636.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11636 | 17688 bytes |
SHA-256: 0a650a9876c8d5fd647be57eab70ea2615473b56d6ebaf9ebefa6311a56be7c3 |
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